		var xmlhttp;
		var url="/fanli/isLogin";
			
		xmlhttp = null;
		if (window.XMLHttpRequest) {// code for Firefox, Mozilla, IE7, etc.
			xmlhttp = new XMLHttpRequest();
		} else if (window.ActiveXObject) {// code for IE6, IE5
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
		if (xmlhttp != null) {
			xmlhttp.onreadystatechange = state_Change;
			xmlhttp.open("GET", url, true);
			xmlhttp.send(null);
		} else {
//			alert("Your browser does not support XMLHTTP.");
		}

		function state_Change() {
			if (xmlhttp.readyState == 4) {// 4 = "loaded"
				if (xmlhttp.status == 200) {// 200 = "OK"
					var msg=eval("(" + xmlhttp.responseText + ")");
					if(msg.success){
						
					}else{
						var toLog="/resources/pages/login.html";
						window.open(toLog, "_self");
					}
					 
				} else {
//					alert("Problem retrieving data:" + xmlhttp.statusText);
				}
			}
		}
		
		
		function checkSession(){
//			alert("ok");
			xmlhttp = null;
			if (window.XMLHttpRequest) {// code for Firefox, Mozilla, IE7, etc.
				xmlhttp = new XMLHttpRequest();
			} else if (window.ActiveXObject) {// code for IE6, IE5
				xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			}
			if (xmlhttp != null) {
				xmlhttp.onreadystatechange = state_Change;
				xmlhttp.open("GET", url, true);
				xmlhttp.send(null);
			} else {
//				alert("Your browser does not support XMLHTTP.");
			}
			
		}
		
		setInterval(checkSession, 3600000); 
		